Air motor having a programmable logic controller interface and a method of retrofitting an air motor
    2.
    发明授权
    Air motor having a programmable logic controller interface and a method of retrofitting an air motor 有权
    具有可编程逻辑控制器接口的气动马达和改进气动马达的方法

    公开(公告)号:US09003950B2

    公开(公告)日:2015-04-14

    申请号:US14234445

    申请日:2011-09-09

    Abstract: A pump assembly having an air motor includes a valve connected to a motive fluid inlet of the air motor. The valve shifts between a first position, in which a flow of motive fluid is directed into a pilot port, through a two way pilot conduit and into a pilot chamber portion, and a second position, in which the flow of motive fluid is inhibited from flowing into the pilot port through the two way pilot conduit and into the pilot chamber portion, and in which fluid in the pilot chamber portion flows out through the two way pilot conduit and is directed by the valve to exhaust. The valve is connected to a programmable logic controller, so that the valve is shifted between the first position and the second position in response to the programmable logic controller.

    Abstract translation: 具有气动马达的泵组件包括连接到气动马达的运动流体入口的阀。 所述阀在其中流动的流体被引导到先导口中的第一位置和第二位置之间移动,所述第二位置通过双向先导管道进入到先导室部分,以及第二位置, 通过双向先导管路进入先导口并进入先导室部分,并且先导室部分中的流体通过双向先导管道流出并被阀引导排气。 该阀连接到可编程逻辑控制器,使得阀响应于可编程逻辑控制器在第一位置和第二位置之间移动。

    Cylinder phaser valves
    3.
    发明授权
    Cylinder phaser valves 有权
    气缸相位阀

    公开(公告)号:US08850952B2

    公开(公告)日:2014-10-07

    申请号:US12996771

    申请日:2010-02-22

    Abstract: A phaser valve for a piston and cylinder assembly helps to keep a pair of pistons in phase with each other. The phaser valve includes a poppet which is slidable between opposing seats of a valve housing. The poppet includes a head and a stem, both the head and the stem having concave portions which facilitate the flow of hydraulic fluid across the valve. The poppet head has two generally conical ends, so that the head makes a fluid-tight seal with a seat when the head is urged towards either seat. Due to its construction, the phaser valve may be built to fit within a very small space, while still allowing a substantial flow of fluid when the head is not in abutment with one of the seats.

    Abstract translation: 用于活塞和气缸组件的相控阀有助于保持一对活塞彼此同相。 相控阀包括可在阀壳体的相对的座之间滑动的提升阀。 提升阀包括头部和杆部,头部和杆部都具有有助于液压流体穿过阀的流动的凹入部分。 提升头具有两个大致圆锥形的端部,使得头部朝向两个座椅被推动时头部与座椅形成流体密封的密封。 由于其结构,可以将相位器阀构造成适合在非常小的空间内,同时当头部不与其中一个座椅相邻时仍允许大量的流体流动。

    Cylinder Phaser Valves
    4.
    发明申请
    Cylinder Phaser Valves 有权
    气缸相移阀

    公开(公告)号:US20110079142A1

    公开(公告)日:2011-04-07

    申请号:US12996771

    申请日:2010-02-22

    Abstract: A phaser valve for a piston and cylinder assembly helps to keep a pair of pistons in phase with each other. The phaser valve includes a poppet which is slidable between opposing seats of a valve housing. The poppet includes a head and a stem, both the head and the stem having concave portions which facilitate the flow of hydraulic fluid across the valve. The poppet head has two generally conical ends, so that the head makes a fluid-tight seal with a seat when the head is urged towards either seat. Due to its construction, the phaser valve may be built to fit within a very small space, while still allowing a substantial flow of fluid when the head is not in abutment with one of the seats.

    Abstract translation: 用于活塞和气缸组件的相控阀有助于保持一对活塞彼此同相。 相控阀包括可在阀壳体的相对的座之间滑动的提升阀。 提升阀包括头部和杆部,头部和杆部都具有有助于液压流体穿过阀的流动的凹入部分。 提升头具有两个大致圆锥形的端部,使得头部朝向两个座椅被推动时头部与座椅形成流体密封的密封。 由于其结构,可以将相位器阀构造成适合在非常小的空间内,同时当头部不与其中一个座椅相邻时仍允许大量的流体流动。

    On/off switch for liquid additive injection pump
    5.
    发明授权
    On/off switch for liquid additive injection pump 有权
    液体添加剂注射泵的开/关开关

    公开(公告)号:US06910405B2

    公开(公告)日:2005-06-28

    申请号:US10615273

    申请日:2003-07-08

    CPC classification number: G05D11/008 F01L21/04 F17D3/12

    Abstract: Operation of a system for injecting a predetermined amount of a secondary fluid into a primary fluid stream. The system uses a liquid additive injection pump driven by a fluid powered motor that is driven by the primary fluid stream and can be selectively suspended by an on/off switch mechanism. The fluid powered motor includes a housing enclosing a differential pressure piston assembly having a piston movable within housing between upstroke and down stroke positions; a valve mechanism establishing a differential pressure within the housing to produce movement of the piston; an over-center mechanism coupled to the valve mechanism to toggle the valve mechanism between open and closed positions; and an actuating shall coupled to the over-center mechanism.

    Abstract translation: 用于将预定量的二次流体注入主流体流的系统的操作。 该系统使用由流体动力马达驱动的液体添加剂注入泵,其由主流体流驱动并且可以通过开/关切换机构选择性地悬挂。 流体动力马达包括封闭差压活塞组件的壳体,该压差活塞组件具有可在上冲程和下冲冲位置之间在壳体内移动的活塞; 阀机构,其在壳体内建立压差以产生活塞的运动; 联接到所述阀机构的过中心机构,以在打开和关闭位置之间切换所述阀机构; 并且致动器将联接到过中心机构。

    Multicylinder self-starting uniflow engine
    6.
    发明授权
    Multicylinder self-starting uniflow engine 有权
    多缸自启动单流发动机

    公开(公告)号:US06505538B1

    公开(公告)日:2003-01-14

    申请号:US09396350

    申请日:1999-09-14

    Applicant: Barry Johnston

    Inventor: Barry Johnston

    Abstract: An improved uniflow engine has a plurality of vertically extending cylinders distributed in-line along a horizontally extending common crankshaft connected to pistons reciprocating in the cylinders. A working fluid vapor is supplied to those cylinders in which the respective pistons are in their working strokes to initiate rotation of the crankshaft in a predetermined direction regardless of where the crankshaft has stopped last. Once rotation is initiated and a predetermined mode change speed attained in a “start-up mode” engine operation, vapor inlet valves are controlled by an inlet valve control mechanism to change engine operation over to a “running mode”. In the start-up mode, incoming vapor is admitted over a substantial portion of the piston working stroke, whereas in the “running mode” vapor inflow is terminated relatively early in the working stroke so that a vapor change does work in expanding against the piston. A mode switch valve including a check valve and a control piston controls a closing rate of each of the vapor inlet valves. A wedge fixed to a head portion of each piston cooperates with a wedge fixed to each vapor inlet valve to close the vapor inlet valve at a predetermined position of the piston.

    Abstract translation: 改进的单流发动机具有多个垂直延伸的气缸,其沿着水平延伸的公共曲轴成直线分布,该曲轴连接到在气缸中往复运动的活塞。 工作流体蒸汽被供应到各个活塞在其工作冲程中的那些气缸,以启动曲轴在预定方向上的旋转,而不管最后曲轴停止的位置。 一旦启动旋转并且在“启动模式”发动机操作中达到预定的模式改变速度,则通过进气阀控制机构控制蒸汽进气阀,以将发动机运转改变为“行驶模式”。 在启动模式下,进入的蒸汽在活塞工作行程的很大部分被允许,而在“运行模式”中,蒸气流入在工作冲程中比较早地终止,使得蒸汽变化在活塞上膨胀 。 包括止回阀和控制活塞的模式切换阀控制每个蒸气入口阀的关闭速度。 固定到每个活塞的头部的楔子与固定到每个蒸汽入口阀的楔合作,以在活塞的预定位置处关闭蒸气入口阀。

    Compression spring fluid motor
    7.
    发明授权
    Compression spring fluid motor 失效
    压缩弹簧液压马达

    公开(公告)号:US5137435A

    公开(公告)日:1992-08-11

    申请号:US674792

    申请日:1991-03-25

    Applicant: Frank Walton

    Inventor: Frank Walton

    CPC classification number: F04B9/1053 F01L21/04

    Abstract: A reciprocating primary fluid driven motor has a stepped piston in a housing having a center hanging actuator rod which extends into the piston to periodically cooperate with an axially shiftable connector member in the piston which operates valves which establish the reciprocating stroke of the piston by opening and closing valve members on the larger and smaller faces of the stepped piston. A block member with compression spring drivers pivotally mounted inside the piston slides on the actuator rod during movement of the piston. The drivers are compressed in response to spaced stops on the actuator rod during continued movement of the piston until a sudden over-center movement of the block member shifts the connector to operate the valve members to cause reciprocation of the piston. Quiet operation during shifting is provided by shock absorbers. No sliding seal with the actuator rod is necessary. Provision for bleeding air from the housing chamber facilitates startup. The stepped piston is connected to a secondary fluid additive pump to inject metered amounts of secondary fluid into the primary fluid stream.

    Multicyclinder self-starting uniflow engine
    8.
    发明授权
    Multicyclinder self-starting uniflow engine 失效
    多缸自动起动单流发动机

    公开(公告)号:US4947731A

    公开(公告)日:1990-08-14

    申请号:US293591

    申请日:1989-01-05

    Applicant: Barry Johnston

    Inventor: Barry Johnston

    Abstract: A uniflow engine has a plurality of cylinders disposed symmetrically around a common crankshaft connected to pistons reciprocating in the cylinders. In response to the availability of a working fluid vapor at a predetermined condition, such as a high pressure or temperature, incoming vapor is supplied to those cylinders in which the respective pistons are in their working strokes to thereby initiate rotation of the crankshaft in a predetermined direction regardless of the position in which the crankshaft has stopped last. Once rotation is initiated and a predetermined mode change speed attained in a "start-up mode" by engine operation from start, vapor inlet valves are controlled to change engine operation over to a "running mode". In the "start-up mode" incoming vapor is admitted over a substantial portion of the piston working stroke, whereas in the "running mode" vapor inflow is terminated relatively early in the working stroke so that a vapor change does work in expanding against the piston. A relief valve is provided in the head portion of each piston and is actuated by inertia forces to facilitate evacuation of exhausted working fluid vapor from the corresponding cylinder.

    Abstract translation: 单流发动机具有多个气缸对称地围绕连接到在气缸中往复运动的活塞的公共曲轴。 响应于在诸如高压或高温的预定条件下工作流体蒸气的可用性,将进入的蒸汽供应到相应活塞在其工作冲程中的那些气缸,从而启动曲轴在预定的 无论曲轴停止的位置如何。 一旦开始旋转,并且通过发动机起动从“启动模式”获得预定的模式改变速度,则控制蒸汽进气阀以将发动机运转改变为“行驶模式”。 在“启动模式”中,进入的蒸汽在活塞工作行程的很大部分被允许,而在“运行模式”中,蒸气流入在工作冲程中比较早地终止,使得蒸汽变化确实适用于扩大 活塞。 在每个活塞的头部设置安全阀,并通过惯性力来致动,以便排出的工作流体蒸汽从相应的气缸排出。

    Reciprocating hydraulic motors
    9.
    发明授权
    Reciprocating hydraulic motors 失效
    往复式液压马达

    公开(公告)号:US4161989A

    公开(公告)日:1979-07-24

    申请号:US839190

    申请日:1977-10-04

    Inventor: Antony D. Barber

    CPC classification number: B25D9/12 B25D9/145 E21B6/00 F01L21/04 F03C1/0073

    Abstract: A reciprocating hydraulic motor, for example for a rotary percussive drilling head, includes a piston and cylinder having a piston face exposed to the pressure in a compression chamber which is connected through ports controlled by the piston to a supply pressure at one end portion of its stroke, and to exhaust at an opposite end portion of the stroke, while between these end portions of the stroke is a compression/expansion travel during which the compression chamber is closed and the liquid in it alternately expands over a higher range of pressure and is compressed over a lower range of pressure.For returning the piston, in the direction in which liquid is compressed, one of two opposed faces of the piston is exposed to the pressure in a biasing chamber which communicates permanently with a constant pressure supply while the other communicates with the compression chamber.

    Abstract translation: 例如用于旋转冲击式钻头的往复式液压马达包括具有暴露于压缩室中的压力的​​活塞面的活塞和气缸,该压缩室通过由活塞控制的端口连接到其活塞的一端部处的供给压力 行程,并且在行程的相对端部排出,而在行程的这些端部之间是压缩/膨胀行程,在该压缩/膨胀行程期间,压缩室被关闭,并且其中的液体在更高的压力范围内交替地膨胀,并且是 在较低的压力范围内压缩。

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